The people I hate were mentioned briefly earlier...the ones that talk constantly. I mean, I don't mind if you lean over and make a comment, crack a joke, ask a question to the person next to you...but for fawk's sake, at least whisper it!! I hate the people that just carry on a conversation at an almost normal volume, especially in smaller classes. How dense do you have to be to not realize that you're practically talking over the prof.?